<Journal class="Journal" value="PLoS ONE" /> <Page class="#txt" value="e22898"> <Page-2 class="#txt" value="" /> </Page> <Volume class="#txt" value="6" /> <Year class="Year" value="2011" /> </Reference> <Author class="Author" value="Sakai S" /> <Author class="Author" value="Takaki Y" /> <Author class="Author" value="Shimamura S" /> <Author class="Author" value="Sekine M" /> <Author class="Author" value="Tajima T" /> <Author class="Author" value="Kosugi H" /> <Author class="Author" value="Ichikawa N" /> <Author class="Author" value="Tasumi E" /> <Author class="Author" value="Hiraki AT" /> <Author class="Author" value="Shimizu A" /> <Author class="Author" value="Kato Y" /> <Author class="Author" value="Nishiko R" /> <Author class="Author" value="Mori K" /> <Author class="Author" value="Fujita N" /> <Author class="Author" value="Imachi H" /> <Author class="Author" value="Takai K" /> <Medline class="Medline" value="21829548" /> <Abstract class="LongText" value="Sakai_2011_PLoS.One_6